Display apparatus for switching 2d mode and 3d mode

Abstract

Disclosed is an image display apparatus for switching a two-dimensional (2D) mode and a three-dimensional (3D) mode. The image display apparatus includes a display panel in which pixels are arranged, a back light line source arranged so as to be spaced apart from the display panel, a fixed light diffusion plate arranged between the display panel and the back light line source, and a control unit controlling to switch the 2D mode and the 3D mode, wherein 3D line sources forming at least one set are arranged in the back light line source so as to be spaced apart from each other at regular intervals, and a 2D line source is arranged between the 3D line sources arranged so as to be spaced apart from each other.

What is claimed is: 
     
         1 . An image display apparatus for switching a two-dimensional (2D) mode and a three-dimensional (3D) mode, the image display apparatus comprising:
 a display panel in which pixels are arranged;   a back light line source arranged so as to be spaced apart from the display panel;   a fixed light diffusion plate arranged between the display panel and the back light line source; and   a control unit controlling to switch the 2D mode and the 3D mode,   wherein 3D line sources forming at least one set are arranged in the back light line source so as to be spaced apart from each other at regular intervals, and a 2D line source is arranged between the 3D line sources arranged so as to be spaced apart from each other.   
     
     
         2 . The image display apparatus of  claim 1 , wherein, in at least two 3D line source sets, the 3D line sources forming each set and corresponding 3D line sources forming other sets are arranged adjacent to each other. 
     
     
         3 . The image display apparatus of  claim 1 , wherein the display panel is a display panel of a non-emissive optical modulation scheme which includes a liquid crystal display (LCD), a Ferro electric liquid crystal display (FLCD), a digital micro-mirror display (DMD), and a grating light valve (GLV). 
     
     
         4 . The image display apparatus of  claim 1 , wherein the 3D line source or the 2D line source is formed by point light sources. 
     
     
         5 . The image display apparatus of  claim 1 , wherein the 3D line source and the 2D line source is formed by point light sources. 
     
     
         6 . The image display apparatus of  claim 1 , wherein the control unit controls a switch so as to apply a voltage only to the 3D line source when driven in the 3D mode and apply a voltage to both the 3D line source and the 2D line source when driven in the 2D mode.